I have a G5X3 cam and I am going to run about a 100-125 wetshot on my car, should I use 3.73's(I have a set) or keep the 3.42's in my 10bolt?? (dont have the money for a 9" yet) Mods are on Cardomain link below.

 

Don't waste your money going to 3.73s. The gains are minimal for NA let alone N20. Your stock gears are also stronger. There's no need for torque muitiplication with Nitrous; this will only lead to less traction.

 

I will agree with John

 

i spray a head and camed ls1 100 shot w/4.11 gears and have NO traction problems. i'm on a set of 26x11.5x16 m&h racemaster cheeter slicks. but,your 10bolt will not like it.

 

With that cam you need to move up to a 4.11. I have a G5X-3 also so I know. In fact I've been running a 3.73, and just ordered my 4.10 12 bolt yesterday. And I have an A4. Now I just have to go up to a 28" tire for track use. But that is not a big deal for me, and for the street the 26" works just fine.